Licensed Septic Service in Central Florida
ATU Installation in Orlando & Central Florida
When your property needs an aerobic treatment unit, you need it done right the first time — permitted, inspected, and built to last.
65+ years serving Central Florida
Licensed local service team
Fast scheduling and clear communication
Service Overview
ATU Installation Backed by 65+ Years of Local Experience
An aerobic treatment unit (ATU) is one of the most advanced septic solutions available — and one of the most regulated. Whether you're replacing a failed conventional system, building on a lot that requires advanced treatment, or meeting a county compliance requirement, the ATU installation process involves permits, inspections, and precise engineering. Get it wrong and you're facing failed inspections, fines, or a system that doesn't perform. Get it right and you'll have reliable, efficient wastewater treatment for decades.
Lapin Services has been installing and maintaining septic systems across Central Florida since 1958. Our licensed Master Septic Contractors (License SM0890812) handle everything — site evaluation, design, permitting, installation, and inspection coordination — so you never have to navigate the county paperwork maze alone. We've earned a 4.9-star Google rating from more than 1,000 Central Florida homeowners and property managers who trust us to get it right the first time. When it comes to ATU installation in Orlando, we're the team that knows this ground, these codes, and your county's requirements better than anyone.
Problems We Solve
Common ATU Installation Problems We Fix
Here are the issues our team commonly finds and resolves during atu installation calls across Central Florida.
Failed or Failing Conventional Septic System
When a conventional septic system reaches the end of its life — or fails inspection — many Central Florida properties aren't eligible for a like-for-like replacement due to lot size, soil conditions, or proximity to water. An aerobic treatment unit is often the required or most practical solution, delivering higher-quality effluent that meets tighter county standards.
County Compliance or Enforcement Order
Orange, Osceola, Seminole, and other Central Florida counties routinely require ATU systems on properties near water bodies, wetlands, or in areas with high water tables. If you've received a notice of non-compliance or a county enforcement order, Lapin Services can represent you through the process — from system design to final inspection sign-off.
New Construction on Challenging Lots
Not every lot in Central Florida can support a traditional drainfield. Smaller parcels, high water tables, and poor soil percolation often mean an ATU is the only viable path forward for wastewater treatment. We evaluate your site and design a system that meets both your needs and local regulatory requirements before a single shovel goes in the ground.
Existing ATU at End of Life or Beyond Repair
ATU systems have a finite lifespan, and aging units can fail without warning — leaving you with a non-functional system and an urgent compliance issue. If your current aerobic treatment unit is beyond repair or simply outdated, we'll handle the full replacement: permitting, removal of the old unit, installation of the new system, and county inspection.
Property Sale or Transfer Requiring Upgrade
Real estate transactions often trigger septic inspections that uncover systems that no longer meet current code. If your property's septic system fails a pre-sale inspection or a buyer's lender requires an upgrade, we can evaluate whether an ATU installation is required and move quickly to keep your closing on track.
When to Call
Signs Your Septic System Needs Professional Attention
If you notice any of these warning signs, schedule atu installation before the problem becomes more disruptive or expensive.
You've Received a County Notice or Violation
A letter from your county health department or environmental agency about your septic system is a serious signal. These notices often require a permitted upgrade to an advanced treatment system within a specified timeframe. Acting quickly — and with the right contractor — makes all the difference in avoiding escalating fines.
Your Conventional System Has Failed or Is Backing Up
Sewage backing up into drains, soggy spots over your drainfield, or foul odors near your tank are classic signs of a system in distress. If your conventional system can't be repaired cost-effectively — or if your lot no longer qualifies for a conventional replacement — an ATU may be the next step.
You're Building or Adding to a Property Near Water
Properties within a certain distance of lakes, ponds, canals, or wetlands in Central Florida are often required by county code to use advanced wastewater treatment. If you're planning new construction or an addition on a waterfront or near-water property, an ATU installation may be mandatory before you can get a permit.
Your ATU Is Old, Noisy, or No Longer Performing
Most aerobic treatment units last 20–30 years with proper maintenance — but when an older unit starts struggling to maintain treatment levels, trips alarms frequently, or shows signs of structural deterioration, replacement is often more cost-effective than continued repair. We'll give you an honest evaluation.
You're Buying a Property With an Unknown Septic History
If you're purchasing a home or commercial property and the septic system history is unclear, a proper inspection is essential. Many older properties in Central Florida have systems that no longer meet current code. If an upgrade is needed, we can tell you exactly what's required and give you a clear path forward.
Our Process
What to Expect From Your ATU Installation Visit
Lapin keeps the process straightforward from the first call through final documentation, so you know what is happening at every step.
Step 1
Site Evaluation & System Design
We visit your property to assess soil conditions, lot size, setback requirements, and proximity to water features or property lines. Based on this evaluation, our licensed contractors determine the right ATU system type and size for your specific site — and design a system that will pass county inspection the first time.
Step 2
Permitting & County Coordination
We handle all permit applications and coordinate directly with your county health department or environmental agency on your behalf. Navigating Florida's septic permitting process takes experience — we know exactly what each Central Florida county requires and how to move applications through the system efficiently.
Step 3
Professional Installation
Our licensed crew installs your aerobic treatment unit according to the approved design and all applicable state and county codes. We handle excavation, tank placement, aeration components, spray heads or drip irrigation (if required), electrical connections, and system controls — every element of a complete, properly functioning installation.
Step 4
Inspection & County Sign-Off
We coordinate the required county inspection and are on-site to walk inspectors through the installation. Our installations are built to pass — and if any minor adjustment is needed, we address it immediately so there are no delays in getting your system approved and operational.
Step 5
Owner Walkthrough & Ongoing Maintenance Plan
Once your system is approved, we walk you through how it operates, what the alarm indicators mean, and what routine maintenance your ATU requires. Florida regulations require periodic ATU inspections and maintenance — we offer service agreements to keep your system compliant and performing well for years to come.
Why Lapin
Why Central Florida Chooses Lapin for ATU Installation
Lapin combines licensed expertise, local knowledge, and responsive service for septic work throughout Central Florida.
65+ Years of Septic Expertise
Founded in 1958, Lapin has been Central Florida's trusted septic specialist for three generations — with the knowledge to back it up.
4.9★ Rating · 1,000+ Reviews
The best-rated septic company in Florida — not by our own measure, but by your neighbors who've trusted us with their homes.
Licensed Master Septic Contractor
License SM0890812. Fully certified to handle installation, repair, maintenance, inspections, and county compliance — everything your septic system may ever need.
End-to-End Service
One company for pumping, installation, drainfield repair, ATU service, and inspections. No handoffs, no finger-pointing between subs.
Available 24/7
Septic emergencies don't wait for business hours. Our team is available around the clock so you're never left waiting when it matters most.
Related Services
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FAQs
ATU Installation FAQs
What is an aerobic treatment unit (ATU) and how is it different from a conventional septic system?
A conventional septic system uses anaerobic (oxygen-free) bacteria to break down waste inside a tank before releasing effluent into a drainfield. An aerobic treatment unit introduces oxygen into the treatment process, which supports far more active bacterial treatment and produces a significantly cleaner effluent. ATUs are required in Florida when conventional systems aren’t suitable — for example, near water bodies, on smaller lots, or in areas with high water tables — because they treat wastewater to a higher standard before it enters the soil.
Why do Central Florida counties require ATUs on some properties?
Florida has some of the most sensitive water resources in the country — the springs, rivers, lakes, and aquifer that define our landscape are vulnerable to nutrient pollution from improperly treated wastewater. Many Central Florida counties require ATUs on properties near water bodies, in areas with high water tables, or on smaller lots where a conventional drainfield wouldn’t provide adequate treatment. The higher-quality effluent an ATU produces helps protect those water resources while still allowing properties to use onsite wastewater treatment.
How long does ATU installation take from start to finish?
The timeline depends primarily on the permitting process, which varies by county and project complexity. In most cases, you can expect the full process — from initial site evaluation through permitted installation and county inspection — to take anywhere from a few weeks to a couple of months. We work to move permit applications through as efficiently as possible and keep you informed at every stage. Once permits are approved, installation itself typically takes one to two days.
Does an ATU require ongoing maintenance?
Yes — and in Florida, that maintenance is required by state law. ATU systems must be inspected and serviced at regular intervals (typically every four to six months) by a licensed contractor, and an annual operating permit must be maintained through your county health department. Lapin Services offers maintenance agreements that keep your system in compliance, performing correctly, and covered by regular professional inspection — so you’re never scrambling to meet a regulatory deadline.
How much does ATU installation cost in Orlando?
ATU installation costs vary based on your property’s site conditions, the system size and type required, permit fees (which differ by county), and whether any existing system needs to be removed. Because every installation is site-specific, we provide detailed written estimates after evaluating your property — so there are no surprises. Call us at (407) 326-3367 to schedule a site evaluation and get an accurate quote for your situation.
Can you handle the county permits and inspection on my behalf?
Absolutely — and this is one of the most valuable things we do. Navigating septic permits in Orange, Osceola, Seminole, Lake, and other Central Florida counties requires experience, relationships, and a thorough understanding of each jurisdiction’s specific requirements. Our team handles permit applications, communicates directly with county health departments, and coordinates on-site inspections. We represent you throughout the process so you can focus on everything else.
What happens if my county has issued a violation or non-compliance notice about my septic system?
Don’t ignore it — but don’t panic either. County notices come with deadlines, and working with a licensed contractor quickly is the best way to protect yourself. Lapin Services can review your notice, evaluate your current system, determine what upgrade is required, and represent you through the compliance and permitting process. We’ve helped many Central Florida homeowners and property owners resolve compliance issues efficiently and professionally.
Do you service and maintain ATU systems after installation?
Yes — we offer full ATU maintenance programs that cover all required inspections, system checks, component servicing, and annual operating permit support. Whether we installed your system or not, our licensed technicians can take over the ongoing maintenance of your ATU and keep it running properly. Consistent maintenance is the single most important factor in the long-term performance and lifespan of an aerobic treatment unit.
Schedule Service
Schedule ATU Installation Today
Call Lapin Services at (407) 326-3367 today — we'll evaluate your property, explain your options clearly, and handle everything from permits to final inspection so your ATU installation is done right the first time.